Meso-Papilionoideae

Meso-Papilionoideae; Temporal range:
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Clade:	Meso-Papilionoideae; L. P. de Queiroz and M. F. Wojciechowski 2013
Clades
	Exostyleae; Genistoids; Vataireoids; Andira clade; Dalbergioids; Old World clade Baphieae; NPAAA clade; ; incertae sedis Amphimas Pierre ex Harms; Dermatophyllum Scheele; ;
Synonyms
	50-kb Inversion clade Doyle et al. 1997;

Meso-Papilionoideae or 50-kb Inversion clade is a monophyletic clade of the flowering plant subfamily Faboideae (or Papilionoideae) that includes the majority of papilionoid legumes. It contains many agronomically important genera, including Arachis (peanut), Cicer (chickpea), Glycine (soybean), Medicago (alfalfa), Phaseolus (common bean), Trifolium (clover), Vicia (vetch), and Vigna (mung bean).

This clade is circumscribed by the presence of a 50 kb inverted DNA sequence in the plastome of member species and is consistently resolved in molecular phylogenies.

The name Meso-Papilionoideae was proposed for this clade by Wojciechowski (2013). Its original name, 50-kb Inversion clade is still in use and the clade is still frequently referred to by this name in publications, as well as the Angiosperm Phylogeny Website and NCBI taxonomy browser.